Finding the Fourth Proportional to 579,638.90, 869,053.35 and 342,859.70
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Solution
The fourth proportional to 579,638.90, 869,053.35 and 342,859.70 is: 514,049.99
Step by Step Solution
- Step 1: Write the proportion equation
579,638.90 : 869,053.35 = 342,859.70 : x - Step 2: Convert to fraction form
579,638.90/869,053.35 = 342,859.70/x - Step 3: Cross multiply
579,638.90x = 869,053.35 × 342,859.70 - Step 4: Simplify right side
579,638.90x = 297,963,370,865.00 - Step 5: Solve for x
x = 297,963,370,865.00/579,638.90 - Step 6: Final answer
x = 514,049.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.